Electric control device for block printing machines



Jan., i1, 1938. o. BROPHY 2,104,894

ELECTRIC CONTROL DEVICE FOR BLOCK PRINTING MACHINES Filed June 25, 19564 Sheets-Sheet l Jan. l1, 1938. Q BROPHY 2,104,894

ELECTRIC CONTROL DEVICE FOR BLOCK PRINTING'MACHINES Filed June 23, 19364 Sheets-Shet 2 .[z venanl5am. 11, 1938.

o. BROPHY 2,104,894

ELECTRIC CONTROL DEVICE FOR BLOCK PRINTING MACHINES Filed June 23, 19364 Sheets-Sheet 3 SL ffl Se Il :Il

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ELECTRIC CONTROL DEVICE FOR BLOCK PRINTING MACHINES l Filed June 23,1936 4 Sheets-Sheet 4 Patented Jan. 1l, 1938 Oscar Brophy, Philadelphia,Pa.

Application June 23,

24 Claims.

My invention relates to block printing machines for printing linoleumrugs and felt base goods and the like. Said machines have reciprocatingprinting heads, as illustrated in the United States Patent toEisenhardt, No. 476,235, issued May 3l, i892. Machines ci this typeadvance a strip of goo-ds intermittently below printing heads, and theheads are of standard size fer printing sections of goods equal to i8and each operation, or movement, of the machine advances the goods one18 section of the goods.

My i1 vention particulariy relates to improvements in an electriccontrol device for block printingmachines. The control device is adaptedfor selecting the printing heads which are to be operated, or heldinoperative, for changing the sizes of the rugs to be printed.

The object of my invention is to provide novel means for latching theprinting heads out of printing operation and automatically controllingsai-d latching means.

A further object is to provide a control device having a novel latchoperating device including a mechanically reciprocating part, a freelymovable bearing arm interposed between said part and the latch, andlocking means mounted upon the bearing arm for locking the latter withsaid part for engaging the latch with the printing head.

A further object is to mount an electromagnetic device upon the bearingarm for operating the locking means with the reciprocating part, andprovide means between the bearing arm and the latch for yieldinglymoving the latter into operative position.

A further object is to provide a control device having a novel controlbelt for operating the latch operating means.

A further object to provide a control belt which is a moving miniaturerepresentation of many sections of the goods to be printed by theprinting beads, whereby the operator will have exposed to his view alarge surface or the control device containing several repeats of therug patterns, and representing a large number of sections of the goodsbefore said sections pass adjacent to the printing heads, thus providingsuiicient time for the operator to make changes in tue control devicefor changing the arrangement and sizes cf the rugs to be printed.

A further object is to provide a control device including an endlessbelt movable at a speed propcrtional to the speed of *he goods, andconstruct the belt ci transverse plates mounted in hinged reiation toeach other. Each plate forming a sec- 1936, Serial No. 86,760

(Cl. lill-i233) tion of the beit which is proportional to an i8 sectionci the goods.

A further object is to provide detachable cam blocks upon the belt foractuating switches for controlling electric circuits which in turncontrol b the latch operating devices.

A further object is to provide means by which the cam blocks may bereadiiy attached in different positions upon the belt so as to travelwith the belt in any desired column and operate certain switches forcontrolling dii-ferent printing heads, whereby rugs of any size may beprinted by simply varying the number of cam blocks used to control theheads for printing the eld sections of any rug.

A further object is to provide a signal device arranged to be actuatedby signal cam blocks detachably mounted upon the belt, for indicatingwhere the goods are to be cut to form lengths suitable for entering adrying rack of a predetermined length, and also indicate to the operatorthe sections upon the belt where one rug must be provided with afinishing border cam block, and the next successive section of the beltmust be provided with a starting border cam block, which result may bereadily accomplished by rearranging the cam blocks.

A further object is to provide mercury switches for controlling thecircuits which in turn controi the latch operating devices, and alsoprovide pivoted bearings carrying the mercury switches and actuated bythe cam blocks upon the belt.

A further object is tc provide novel means for mounting the bearingscarrying the mercury switches, whereby they may be readily positioned tobe engaged by the cam blocks in any desired column in which said blocksare advanced by the belt.

'I'hese together with various other novel features of construction andarrangement of the parts, which will be more fully hereinafter describedand claimed constitute my invention.

In the accompanying drawings; Fig. 1 is a side elevation, partly insection, of a portion of a printing machine embodying my invention.

Fig. 2 is a perspective View showing diagrammatically my improved latchoperating device.

Fig. 3 is an enlarged plan view of the control device shown in Fig. l,partly in section.

Fig. 4 is an enlarged transverse vertical section on line liof Fig. 3.

Fig. 5 is a vertical section on line 5-5 of Fig. 4

Referring to the drawings, in which like reference characters refer tolike parts, IU represents the frame of a standard type of printingmachine. Printing heads I2, each carrying a printing block I3, areprovided for printing a strip of goods I5, advanced intermittently overa table I6, and supported upon the frame I5.

The heads I2 are secured upon head slides I8 located on opposite sidesof the frame and are slidable vertically in guides 20. VThe slides I8each have a roller 2l which isengaged by a cam 22 for lifting the headsI2. The cams 22 are secured upon opposite ends of shafts 23, mountedupon the frame IIJ. The shafts 23 each have a bevel gear Wheel 24secured thereon and rotated by means of suitable gearing 21, driven by amain shaft 25, in the usual manner.

When it is desired to omit the printing operation of any head, the headis held in the elevated position by latches 26, which engage projections28, secured upon the slides I8. There are two latches 26 for each head.A shaft 30 is rotatably mounted upon the frame I0, and the latches arerigidly secured upon the opposite ends of said shaft which projectbeyond the sides of the frame I0'.

My novel latch operating device 3l comprises a cam arm 32, which isloosely mounted upon the shaft 33 and its free end is engaged by asecond cam 33 secured upon the shaft 23. A bearing arm 35 is looselymounted upon the shaft 30, carrying the latches 26. A hook 36 is formedupon a lever 31 which is pivotallymounted upon a pin 38 secured upon thebearing arm 35. The hook 361s adapted to engage a pin 40 secured uponthe cam arm 32. A weighted arm 39 0i the lever 31 tends to hold the hook36 out of engagement with the pin 43, and against a stop pin 4I, asshown at the right hand portion of Fig. 1.

When the hook 36 is released from the pin 45 the cam arm 32 may be movedby the cam 33 without moving the bearing arm 35, and the latches 26 willnot engage the projections 28, thus allowing the head to be operated bythe cams 22 for printing upon the goods.

A clamp head 45, see Fig. 2, is rigidly secured upon the shaft 36,carrying the latches. A plate spring 43 is secured in the clamp head 45and the free end` of the spring 46 is adapted to be engaged by a pin 41,secured on the bearing arm 35. When the hook 36 is engaged with the pin4i! the bearing arm 35 will be moved with the cam arm 32, and the pin41, on the bearing arm 35, will move the spring 46, which latter willrotate the shaft 3D and swing the latches 26 into contact with guideplates 49, and when the head is moved adjacent to its highest position,the spring 43 will force the latches into engagement with theprojections 28 and hold the printing heads in the elevated position,during one complete revolution of the cams 22 and 33. At the completionof the revolution the cams 22 will lift the head slides I8 suflicientlyto release the latches 26 from the projections 28, so that weight 43,shown in Fig. 2, secured upon the shaft 30, will tend to turn the latterand move the latches away from the projections 28, unless the hook 3E isstill held in engagement with the pin 40, as hereinafter described, inwhich case the head I2 will be held in the elevated position by thelatches 25 during another revolution of the cams 22 and 33.

The hook 33 is moved into engagement with the pin 46 by the action of asolenoid 50, secured to the bearing arm 35. The solenoid 50 may be ofany well known construction. The movable armature 5I of the solenoid ispivotally connected to the Weighted arm 39 of the lever 31.

When the solenoid 55 is energized, the hook 36, on the lever 31, will bemoved into engagement with the pin 40, and the bearing arm 35 will bemoved with the cam arm 32. The bearing arm 35 is held in an adjustedposition for insuring the engagement of the hook 36 with the pin 43 byan eccentric stop sleeve 53, which is secured upon a cross shaft 54,rotatably mounted in the frame IB. A guide plate 55, shown in Fig. 2, issecured upon the bearing arm 35 and projects along one face of the camarm 32 for guiding the parts in proper relation.

Each hook lever 31 is moved by a solenoid 50, which latter is connectedin an Yelectric circuit 56 including a switch 58 adapted for closingsaid circuit and energizing the solenoid 58 for locking the hook 35 withthe pin 40, thus engaging the latch 26 with the projection 28 forholding the printing head I2 out of operation.

A control device 60, including the switches 58, is provided foractuating the latch operating devices 3I for engaging and disengagingthe latches 25 of the several heads I2.V

The control device 60 is located upon one side of the frame I6' andadjacent to the end of the machine into which the goods I5 enter themachine to be printed, The control device 60 comprises an endless belt6I formed of transverse plates '62, having their ends mounted uponparallel chains 53. The chains are mounted upon Vwheels 64 and IE5,-Secured upon shafts 66 and 61, which are rotatably mounted in bearings68 and 69 secured upon a bearing frame 10. The wheel 64, as shown inFigs. 4 and 5, is driven by a worm Wheel 12 secured upon shaft 66. Thewheel 12 meshes with a worm 13 secured upon a verticalshaft 14. YAsshown in Fig. l the shaft 15 is driven through suitable gears 15, 16, 11and 18 from the main shaft 25 for advancing the belt l6I in timedrelation with the advancement of the goods I5 through the machine.

The bearing frame 16 is supported upon the frame I6 by brackets 13,shown in Fig. 1.v A table 3) is mounted upon the frame 10 and alsosecured to the frame I0 by plates SI. The table Sil forms a support fortracks 82 on which the straight run of the belt 6| is supported.Vertical bearing plates 84 and 85 are secured upon the table 85 andextend along opposite sides of the belt 6I for a distance equal to aboutone-half the distance between the wheels 54 and 65, on which the belt ismounted. Said plates 84 and 85 form supports for the opposite ends of aseries of transverse shafts 86, positioned above the belt so that thelatter may pass below said shafts and operate a switch 58 located uponeach shaft 86, for controlling the operation of the printing heads.

There is a switch 58 and a solenoid 50 included in each circuit 56 forcontrolling and operating the latches 26 for each printing head I2. Saidshafts 86 are detachably secured in the bearing plate 84 by thumb screws81, shown in Figs. 3 and 4. Handles 88 are secured upon the shafts 36for quickly removing the shafts when changing the position of theswitches.

The chains 63 of the belt 6i are formed of links Si! pivoted together bypins 3i, as shown in Figs. 3 to 5. The links 96 have extension brackets32 thereon to which the ends of the transverse plates 62 are secured bybolts 93 and said plates 62 are supported by the brackets 92.

The transverse plates 52 of the belt extend parallel to each other andform a fiat surface throughout the straight run of the belt. Said plates62 are preferably formed of aluminum strips each 5/8 in width.

I'he entire length of the belt Sl is formed of the hinged sections, orplates 62, each occupying %"`throughout the length of the belt. Eachsection of the belt corresponds to an 18 section of the goods to beprinted. The length of the belt is equal to a multiple of 64 sections orplates G2, when the goods are to be cut into strips each 96 long, andcontaining 64 sections and adapted to be received in a drying rack ofthat length. If the printing machine is to be used in connection with adrying rack of a different size, then the number of plates '52 formingthe belt will be varied accordingly.

Each plate 62 is formed with slots 95 to provide means for detachablymounting cam blocks 96 upon the belt, for operating the switches 58.Upon the under surface of each cam block 96 is a double end plate spring9i, shown in Fig. 4, adapted to enter a slot 95 of a plate 52 and engagethe plate 9? for detachably securing the cam block 95 upon a plate 52.

A cam block 9 may be secured in any one of the several slots 95, whichlatter are arranged at given intervals throughout the length of eachtransverse plate 62. The cam blocks 96 will be carried by the belt incolumns for operating succcssively the different switches 53, whichswitches are positioned immediately above a particular column of thebelt for controlling certain printing heads l2 for printing startingborder sections of the rugs, or heads for printing eld sections, orheads for printing finishing borders, or double borders, or centerdesigns of rugs. By shifting the cam blocks 95 from one column of thebelt to another column any desired order may be fol lowed for printingrugs of different sizes.

The switches 58, which are actuated by the cam blocks 95, are eachoperated by an arm 9S, one end of which arm is rigidly secured upon asleeve 99, which is loosely mounted upon a shaft 85. The sleeve 99projects beyond one side of the arm 98 and forms a bearing for a clampblock l, which latter is adjustably secured in any desired radialposition on the sleeve 2S by a set-screw IUI.

The clamp block mi) has an extension plate H32 thereon, which plate isprovided with a spring clip H13 for holding a mercury tube switch H35,of any well known construction. Said mercury tube switch forms part ofthe switch 58.

The free end of the arm 98 is provided with a roller H35 which normallyrests upon the flat surn face of the belt plates E2, as shown in Fig. 5,and positions the switch tube 155 at an angle inclined to the topsurface of the belt til, so that the mercury in the tube will form anelectrical connection between the contact points lill and Hi8 locatedwithin the tube |05 and included in the circuit 55. When a cam block 95is moved by the belt into engagement with the roller ii, the arm Sil andthe tube IE5 will be tilted t0 a position to cause the mercury to flowaway from the contact points it? and 08 and open the circuit 56. l

The arm 98 and the clamp block Iil are positioned longitudinally uponthe shaft by spacing sleeves lila, which extend endwise and abut againstthe opposite bearing plates 84 and S5. By removing a shaft S andrearranging the sleeves |69 upon the shaft B the roller iili of anyswitch may be positioned to be engaged by the cam blocks 96 located inany of the different columns through which the cam blocks are i moved bythe belt.

"Jfhe longitudinal adjustment of the switches 58 andthe rollers |536upon the shafts 85 is only necessary when rearranging the printing orderof the heads l2. To permit the switch tubes i535 to tilt withoutinterfering with each other, the diierent switch arms S8 are providedWith right and left hand sleeves 99, whereby the plates lil carryingsaid tubes m5 can be staggered throughout the series of shafts 8E andthus allow the shaftstc be placed as closely together as possible, sothat a relatively long surface of the control belt El will be visible tothe operator beyond the series of shafts 85.

Each switch 5B comprises a mercury tube switch li and controls anelectric circuit 5i?, which circuit also includes a solenoid 5B, whichin turn controls a latch operating device 3l located adjacent to eachprinting head E2.

When a mercury tube ESS, forming a switch 58, is tilted by the weight ofthe arm 98, to a position in which the roller |96 rests upon a plate 62of the belt l, the circuit 5E will be closed, the solenoid 5E) will beenergized and the latch operating device will be moved to engage thelatch 25 with the projection 28 on the head slide 48 and hold theprinting head l2 out of action. When the roller Hit is upon a cam blockthe switch tube l will be tilted to a position to open the circuit andthe latch 26 will remain out of engagement with the projection 28, theprinting head will be free to be moved down into printing Contact withthe goods.

The printing blocks i3, on the heads l2, each print a section of thegoods i8 long and the strip of goods l5 is moved 18 for each completerevolution of the head operating cams 22. Each plate E2 of the controlbelt is of a size proportional to an 18'l section of the goods and saidbelt is advanced at a speed proportional to the travel of the goods.

The strip of goods i5 to be printed is of great length and it isdesirable to cut the original long strip of goods into shorter strips,of given lengths, so that each shorter strip will exactly t a dryingrack of a given size. If the rack is 96' long the strip when cut shouldcontain sixty-four, 18" rug sections, and to avoid any waste of materialthe rugs must be completed in sizes to exactly cover the 96' strip. Thecontrol belt 6l must always be of a relative length to contain 64sections, or plates 52, or a multiple of 64 plates.

rlhe shafts B6 and switches 58 extend over only about one-half thelength of the top flat surface of the belt 6l, the remaining portion ofthe flat surface of the belt is exposed and presents to the operator aconventional picture, or miniature representation of the rugs before thegoods are printed. The exposed surface of the belt 6|, with the camblocks @t arranged thereon, represents the arrangement of the rugs to beprinted, and said surface is visible before the cam blocks pass belowthe switches 58 for controlling the printing heads. The exposed area ofthe belt Si is of sufcient length to give the operator ample time tocorrect mistakes and to change the sizes of the rugs before the goodsare printed.

When a defective spot occurs in the goods the operator may readilyremove a cam block 9G from a section, or plate 52 of the belt, whichplate corresponds to the 18" section of the goods where the defectivespot occurs. In some cases where large defective spots occur, two ormore cam blocks 96 may be removed. The absence of a cam block from thebelt will cause the switch 5d to close the circuit 56 so that thelatoh'operating device will latch the printing head associated therewithout of operation.

It will be understood that each section, or plate 62, represents 18" ofthe goods. If a plate E52 does not carry `a cam block 96, thecorresponding 18 section of the goods will not be printed upon. The camblocks S6 represent the sections of the goods to be printed, and may berearranged to change the rug sizes. The positions of the cam blocks 96in the different columns upon the belt determine the type of printingheads to operate for printing upon the goods.

There may be ve or more printing heads for printing diierent colors uponborder sections of the rugs, and five or more heads for printingdifferent colors on iield sections. Each series of printing heads iscontrolled by a series of switches 53 arranged in rows upon the seriesof shafts 36. Each row of switches extends parallel with and immediatelyabove a column of the Slots formed in the belt plates 62.

The cam blocks Q6 positioned in the column of slotsindicated in Fig. 3by the letter A are for operating switches 58 for controlling bordertype printing heads, for printing either single borders, or doubleborders, as previously determined The cam blocks in column B are foroperating switches for controlling heads for printing eld sections ofrugs. The column C is provided for cam blocks for controlling printingheads, not shown on the drawings, for printing center eld sections of aderent design, and the column D is for signal cam blocks HI).

The signal cam blocks Hl) are for operating a signal switch I l 2'foractuating a signal l i3, shown in Fig. l. Each signal cam block l! uponthe belt indicates the place where the goods are to be out ori to formstrips of a given length to loe received in a drying rack of a givensize, usually 96 long.

The sections, or plates 62, of the belt 6I are numbered 1 to 64, whichnumbers are not shown on the drawings, said numbers are repeatedthroughoutl the length of the belt. A strip of goods may be started intothe machine at any point. The number on the control belt plate,corresponding to the starting point of the goods, is noted and a signalcam block Il@ is then placed upon every sixty-fourth plate throughoutthe length of the belt for operating the signal switch II2 and thesignal H3.

The signal switch I I2 is similar to the switches 5d, and the switch IIEis included in an electric circuit H4 including the signal device II3,such as an electric bell shown in Fig. 1.

The extensive exposed flat surface of the control belt 5I gives theoperator ample'time to change the position of the cam blocks 96 withoutstopping the machine. The signal switch cam blocks IIII indicate to theoperator that the strip of goods is to be cut at a certain point andthat the goods must be finished with a finishing border at that pointand a starting border printed immediately following that point. If oneor more 18" sections of defective goods have been omitted from theprinting operations change the order of the cam blocks 96 upon the beltbefore they actuate the switches v5t.

The operator by inspecting theadvancing control belt I may see which camblocks 9E must be shifted for changing the sizes of the rugs to completea strip of goods which is to be out oi adjacent to the correspondingposition of a signal the operator can readilyV block IIU on the belt.After the cam blocks 9G have been properly arranged upon the beltbetween the Signal cam blocks H6 the belt will automatically repeat theprinting order in which the printing heads are to be operated. it isonly necessary to change the arrangement of the blocks 9S when it isrequired to omit the printing of defective spots occurring upon thegoods, or when it is desired to change the sizes oi the rugs to beprinted.

A manually operated snap-switch H6 is provided in each circuit 5t, andsaid snap-switch is arranged for opening the circuit when a printinghead is not to be used and is permanently locked out of action by a handoperated latch well known in the art and not shown in the drawings.

The operation of my invention is as follows: The cams 22 reciprocate theprinting heads con* tinuously except when they are held in the elevatedposition Yand out of action by the latches 2&5. The cams 22 are set sothat they will operate the heads for printing upon every other sectionof the goods. The goods are then advanced by the machine until theintermediate sections are positioned below the heads to be printed upon,in the usual manner.

The cam arms 32 of the latch operating devices 3i are loosely mounted onthe shafts 3 and are moved continuously by the cams 33.

The latches 2S are normally out of engagement 5.*

with the projections 2S of the printing heads. The hooks 36 are releasedfrom the cam arms 3E by the weighted ends 39 of the hook levers 3l, thusthe printing heads may be moved into printing contact with the goodsupon every revolution or" the shafts 23. v

When a circuit 56, including a solenoid 5t of any latch operating device3l is closed, the hook 3S will be positioned to engage the cam arm pindi), so that the arm 32 will move the bearing arm 35, and theV pin 4'!on the bearing arm will engage the plate spring d, which latter willLii) yieldingly move the latch 25 into the path of l the projection 28and hold the head out of action when the latch is engaged with theprojection 26.

The belt Si of the control device et for actuating the solenoids 5i) ismoved at a speed proportional to the sneed at which the goods le areadvanced under the printing heads. The transverse plates 62 or the belt,each represents an I8 section of the goods to be printed. There is aswitch 53 included in each circuit 5S for operating each solenoid 50,Said switches 523 are arranged toopen or close a circuit 55 when theswitch is tilted by an arm 98 associated with each ,w

switch. When the roller m5 on an arm d8 rests upon the flat surface of aplate 52 of the control belt, the switch 58 will be positioned to closethe circuit 56 including a solenoid 5, the latter will be energized andthe latch 2@ moved by the cam arm 32 into locking position for holdingthe head i2 out of action.

When the switch arm 98 is tilted by a cam block 95, carried by a beltplate 62, the switch 58 will be actuated to open the circuit 5SV and thesolenoid 5i) will no longer be energized and the latch 26 will bereleased from the head l2 upon the next revolution of the cam 22.

When a cam block Q6 is attached to any plate of the belt, a section ofthe goods represented by that particular plate will be printed upon by ahead I2. A cam block d may be readily removed whenever itis desired toprevent the printing oi'V any i8 section of the goods which may bedefective. The belt 6l is constructed so that the cam blocks 96 will becarried by the belt in any one of several columns for actuating a seriesof switches 58 arranged immediately above'the different columns. Theshafts 85 on which the switches 58 are mounted are separated by adistance equal to two plates 62 of the belt. When a plate t2 does nothave a cam block in a particular column all the switch arm rollers 65which are located over that column will ride upon the flat surface ofthe belt and said switches'will be positioned for closing the circuits56, thus energizing the solenoids 5E! for latching the heads l2 but ofprinting action.

The switches 58 are all mounted in close relation to each other so as toleave a large dat surface of the belt El exposed to View before the camblocks are advanced below the switches. i ie exposed portion of the topsurface of the control belt presents a miniature representation of theorder in which the printing of the successive sections of the goods willtake place, and the operator may make various changes in the sizes ofthe rugs before the printing of the corresponding sections of the goodstakes place.

When a cam block 96 is removed to prevent the printing of a defectiveportion of the goods, the operator'can see which cam blocks must beshifted from the column of cam blocks which operate the headsy forprinting eld sections of rugs to those for printing border sections, sothat complete rugs will be printed before and after the defectivesections of the goods occur.

Signal cam blocks titl are inserted at given intervals upon the belt Bl,which blocks H show the operator where the strip of goods is to be outto be placed in certain size drying racks. 'I'he operator may readilychange the cam blocks 95 which are located upon the belt adjacent to thesignal cam block llt, so that the last section of the goods will beprinted with a finishing border and the new section of goods will beprinted with a starting border.

When a new piece of goods is started into the machine the number of theplate of the control belt is noted and the signal cam blocks IHJ areattached at intervals throughout the length of the belt, whereby thesignal blocks will indicate where the goods are to be cut, and theoperator can shift the blocks 96 upon the belt so that each strip of thegoods 96' long will contain finished rugs of a salable size.

Various changes in the construction and arrangement of the parts may bemade without departing from my invention.

I claim:-

l. A printing machine having in combination a frame, means forintermittently advancing goods into the machine to :be printed, printingheads, means for reciprocating the heads into printing relation Vwiththe goods, a latch movably mounted upon the frame adjacent to each headfor latching the head out of action, a bearing arm mounted foroscillation and operatively associated with the latch for engaging thelatter with the head, a part mounted for oscillation in timed relationwith the head, locking means upon the bearing arm and arranged forengagement with said part, an electromagnetic device mounted upon saidarm and arranged for engaging said locking means with said part formoving said arm with said part, and a control device operativelyassociated with said electromagnetic device.

2. A printing machine having in combination a frame, means forintermittently advancing goods to be printed, reciprocating printingheads, a latch movably mounted upon the frame adjacent to each head andarranged for holding a head out of printing contact with the goods, abearing arm mounted for oscillation, a hook lever pivoted upon the saidarm, a part mounted for oscillation in relation with the head, anelectro-magnetic device mounted upon said arm and arranged for movingsaid hook lever into locking engagement with said part for moving thebearing arm with said flexible means actuated by the bearing arm forengaging the latch with the head, and a ltrol device operativelyassociated with said electro-magnetic device.

3. A printing machine having in combination a frame, reciprocatingprinting heads upon the frame, a latch movably mounted upon the framelocated adjacent to each head, a shaft upon the frame, an arm mountedupon the shaft,

means for oscillating said arm in timed relation with the head, abearing arm pivotally mounted upon the shaft, means for coupling thebearing arm for movement with said first mentioned ann, and meansoperatively associated with the bearing arm and the latch and arrangedfor engaging the latch with the printing head for holding the latterinoperative.

4. A printing machine having in combination a frame, reciprocatingprinting heads upon the' frame, a latch movably mounted upon the frameand located adjacent to each head, a shaft upon the frame, an armmounted upon the shaft, means for oscillating said arm in timed relationwith the head, a bearing arm pivotally mounted upon the shaft, means forcoupling the bearing arm for movement with said first mentioned arm, aflexible member having one end pivoted upon the shaft, means upon thebearing arm engagable with said member and arranged for rotating saidmember into engagement with the latch and positioning the latter forholding the printing head inoperative, and means upon the bearing armarranged for actuating said means for coupling the bearing arm with theiirst mentioned arm.

5. A printing machine having in combination, printing heads, means forintermittently advancing goods under said heads, shafts, cams upon saidshafts for reciprocating the heads into printing relation with thegoods, a latch associated with each head for latching the head out ofoperation, individual mechanical means for operating each latch saidmeans having an electromagnetic device adapted for coupling saidmechanical means with each latch, an electric circuit including theelectro-magnetic device, a control device operatively associated withsaid electro-magnetic device, a belt included in the control device,means for moving the belt in timed relation with the speed of the goods,said belt having a variable surface, a circuit controlling device in thecircuit including the electro-magnetic device, means for operating saidcircuit controlling device by the variable surface of the belt. andmeans for varying the surface of the belt whereby the operation of allthe printing heads is controlled.

6. A printing machine having in combination a frame, printing heads,slides movable vertically upon the frame and carrying said heads, alatch movable to and from engagement with said slide for holding thehead out of action when said latch is engaged with the slide, a camshaft upon the frame, a cam upon said shaft for lifting the slide, asecond cam upon said shaft, a second shaft mounted'upon the frame, meanssecuring the latch upon said second shaft, an arm pivote upon the secondshaft and movable by said second cam, a bearing arm pivoted upon thesecond shaft, a part associated With said bearing arm and arranged torotate the second shaft and engage the latch With said slide, a hookpivoted upon said bearing arm, a solenoid mounted upon said bearing armand arranged for engaging the hook with the first mentioned arm, anelectric circuit including the solenoid, a switch included in saidcircuit, and a control device arranged for actuating the switch.

7. A printing machine having in combination a frame, printing heads,slides movable vertically upon the frame and carrying said heads, alatch movable to and from engagement with said slide for holding thehead out of action when said latch is engaged with the slide, a camshaft upon the frame, a cam upon said shaft for lifting the slide, asecond cam upon said shaft, a second shaft rotatably mounted upon theframe, an arm loosely Ypivoted upon the second shaft and movable by saidsecond cam, a bearing arm loosely pivoted upon said second shaft, aflexible arm secured upon said second shaft and movable by the bearingarm into engagement with the latch for positioning the latter forengagement with the slide,

' a solenoid mounted upon the bearing arm, locking means upon saidbearingv arm and arranged to be actuated by the solenoid for loclnng thebearing arm with the cam arm, an electric circuit including thesolenoid, a switch includedin said circuit, and a control devicearranged for actuating the switch.

8. A'printing Vmachine having in combination, printing heads, means forintermittently advancing the goods under said heads, shafts, cams uponsaid shafts for reciprocating the heads into printing relation with thegoods, a second shaft mounted for rotation and located adjacent to eachhead, a latch secured to said second shaft and associated With each headfor latching the head out of printing operation, an arm loosely mountedupon said second shaft, means for oscillating the arm in timed relationwith the head with which the second shaft is associated, a bearing armloosely mounted upon said second shaft, means upon the bearing armadapted for rotating the second shaft with the bearing arm, anelectro-magnetic devicemountedupon said bearing arm and adapted forlocking the latter with the rst-mentioned arm, an electric circuitincluding the electro-magnetic device, a control device operativelyassociated with said electro-magnetic device, a belt included in thecontrol device, means for moving the belt in timed relation` with thegoods, said belt having a variable surface, aV mercury switch in thecircuit including the electro-magnetic device, means for operating themercury switch by the variabile surface of the belt, and means forvarying the surface of the belt'vvhereby the operation of the printingheads is controlled. A

9.Y A printing machine havingin combination, means for intermittentlyfeeding goods into the machine, printing heads, means for reciprocatingthe heads for printing upon the goods,.a latch Vassociated with eachhead -for'latching the head outA of. printing operatiom latch operatingmeans associated With each latch, a control belt, means for moving thebelt at aspeed proportional tothe speed of the goods, latch controllingmeans located adjacent to the belt and operatively associated With saidYlatch operating means,

plates secured uponY the belt Yand positioned transversely relatively tothe length of the belt, camblocks movable with the belt into operativeengagement with said latch controlling means, and means detachablymounting the cam blocks upon said plates.V

10. A printing machine having in combination a frame, means forintermittently feeding goods into the machine, printing heads, means forreciprocating the heads for printing rug sections i upon the goods, alatch associated with each head for latching the head out of printingoperation, latch operatingY means associated with Veach latch, a controlbelt, means for moving the belt at a speed proportional to the speed ofthe goods, latch controlling means located adjacent to the belt andoperatively associated with said latch operating means, transverseplates mounted upon the belt, each plate forming a belt sectionproportional in size to a section of the goods g to be printed, camblocks movable with the belt into operative engagement With said latchcontrolling means, and cooperating fastening means upon the cam blocksand upon said plates and arranged to permit the readyY removal orattachment of said cam blocks to said plates.

il. A printing machine having in combination ,f a frame, means forintermittently feeding goods into the machine, printing heads, means forreciprocating the heads for'printing'rug sections upon the goods, alatch associated vwith each head for latching the head out of printingoperation, latch operating means associated 'with each latch, a controlbelt, means for moving the belt at a speed proportional to the speed ofthe goods, latch controlling means located adjacent to theA belt andoperatively associated with said latch operating means, means slidablysupporting said controlling means in adjusted positions transversely tothe belt and in different rows according to the type of heads to beoperated, said rovvs extending parallel with the direction of travel ofthe belt, transverse plates mounted upon thebelt, each'plate forming abelt section proportional in size to a section of the goods to beprinted, each plate being provided with a series offastening meansthereon, each of said fastening means positioned upon a plate so as toalign With said latch controlling means, cam blocks adapted foractuating` said controlling means, and fastening means upon each camblock and arranged for detachably mounting said cam blocks upon saidplates.

l2. A printing machine having in combination a frame, means forintermittently feeding Vgoods into machine, printing heads, means'forreciprocating the heads for printing Vrug sections upon the goods, alatch associated with each head for latching the head out of printingoperation, latch operating means associated vvithv each latch, a controlbelt, means for moving the belt at a speed proportional to the speed ofthe goods, latch controlling means located adjacent to the Vbelt andoperatively associated with said'latch cent to one of said slots andcarried by the belt Cal into operative engagement with said latchcontrolling means, and fastening means upon each cam block arranged toenter a slot formed in a plate and detachably secure the cam block upona plate.

13. A printing machine having in combination a Jframe, means forintermittently feeding goods into the machine, printing heads, means forreciprocating the heads for printing rug sections upon the goods, alatch associated with each head for latching the head out of printingoperation, latch operating means associated with each latch, a controlbelt, means for moving the belt at a speed proportional to the speed ofthe goods, latch controlling means located adjacent the belt andoperatively associated With said latch operating means, plates securedupon the belt and positioned transversely relatively to the length thebelt, said plates each having a slot formed therein, cam blocks, and aspring plate secured to each block and arranged to enter the slot formedin a plate and detachably secure the cam block upon the belt foractuating said latch controlling means.

i4. A printing machine having in combination a frame, means forintermittently advancing goods into the machine, printing heads, meansfor reciprocating the heads for printing rug sections upon the goods, alatch associated With each head for latching the head out of printingction, latch operating means associated with each latch, latchcontrolling means operatively associated with each latch operatingmeans, an endless control belt, transverse plates mounted upon saidbelt, said plates each being proportional to a rug section of the goodsto be printed,

blocks mounted upon said plates and arranged for actuating saidcontrolling means when advanced by the belt into engagement With thecontrolling means, said belt having a flat surface exposed to View inadvance of said conrolling means and containing a sufcient numoer ofsaid plates with the cam blocks thereon corresponding to a plurality ofcomplete rug patterns graphically presented upon the exposed portion ofthe belt.

l5. A printing machine having in combination a frame, means forintermittently advancing goods into the machine, printing heads, meansfor reciprocating the heads for printing rug sections upon the goods, alatch associated with each head for iatching the head out of printingaction, latch operating means associated with each latch, latchcontrolling means operatively associated with each latch operatingmeans, an endless belt, wheels upon which the belt is mounted, a tablelocated between said wheels and supporting a straight run ci belt,plates secured upon the belt and positioned transversely to the lengthof the belt, s yid plates located adjacent to each other and eachforming a section of the belt proportional in size to a section of thegoods to be printed, cam blocks, means detachably mounting a cam blockupon a plate, said controlling means located adjacent to the belt andarranged to be actuated by said cam blocks as they are advanced by thebelt into operative engagement with said controlling means, saidcontrolling means occupying a portion of the length oi the table, saidtable having a portion extending beyond Said controlling means forexposing to View a sufficient number of plates to graphically representa plurality of complete rugs upon the belt before the plates areadvanced by the'belt adjacent to said controlling means whereby the camblocks may be rearranged upon the plates for changing the rug sectionsto be printed by the heads.

16. A printing machine having combination a frame, means forintermittently advancing goods into the machine, printing heads, meansfor reciprocating the heads for printing rug sections upon the goods, alatch associated with each head for latching the head out of printingaction, electromagnetic devices controlling the latches, an endlessbelt, means moving the belt at a speed proportional to the speed of thegoods, plates mounted upon the belt and positioned transverselyrelatively to the length of the belt, said plates positioned adjacent toeach other and forming a continuous supporting surface upon the belt,arms pivotally mounted adjacent to the belt and having their free endsriding upon said surface, cam blocks upon said plates and arranged fortilting the arms, electric circuits each including one of saidelectro-magnetic devices, a switch controlling each of said circuits,and means mounting each switch for operation by the tilting of the arm.

i7. A printing machine having in combination a frame, means forintermittently advancing goods into the machine, printing heads, meansfor reciprocating the heads for printing rug sections upon the goods, alatch associated with each head for latching the head out of printingaction, an electro-magnetic device controlling each latch, an electriccircuit including said device, a mercury switch included in each circuitfor opening and closing the same, an endless belt, means moving the beltat a speed proportional to the goods, transverse plates mounted upon thebelt, cam blocks detachably mounted upon said plates, arms pivotallymounted adjacent to the belt and having their free ends movable by thecam blocks, means operatively associating a mercury switch in operativerelation with an arm, means supporting a straight run of the belt withflat surface exposed to view in advance of said armsand said flatsurface of the belt containing a number of said plates with the camblocks thereon corresponding to a complete pattern to be printed uponthe goods by said heads.

18. A printing machine having in combination a frame, means forintermittently advancing goods into the machine, printing heads, meansfor reciprocating the heads for printing rug sections upon the goods, alatch associated with each head for latching the head out of printingaction, an endless belt, means advancing the belt at a speedproportional to the speed of the goods, cam blocks detachably mountedupon the belt, bearing plates positioned adjacent to and at oppositesides of the belt, shafts mounted in said bearing plates and extendingtransversely relatively to the length oi the belt, an arm slidablymounted upon each shaft, means for securing the arm relatively to thelength of the shaft for locating the free end of the arm in alignmentwith a cam block, and control devices arranged to be actuated by thetilting of the arms.

19. A printing machine having in combination a frame, means forintermittently advancing goods into the machine, printing heads, meansfor reciprocating the heads for printing rug sections upon the goods, alatch associated With each head for latching the head out of printingaction, an endless belt, means advancing the belt at a speedproportional to the speed of the goods, cam blocks detachably mountedupon the belt, bearing plates positioned adjacent to and at oppositesides of the belt, shafts mounted in said bearing plates and extendingtransversely relatively to the length of the belt, an arm pivotallymounted upon each shaft and having its free end located adjacent to thebelt and in alignment with a cam block, and a signal device arranged tobe actuated by the tilting of one of said arms When engaged by a earnblock.

20. A block printing machine having in combination a frame,reciprocating heads, means for intermittently advancing a continuousstrip of goods to be printed by said'heads, an endless belt comprisingsections each section being proportional in size to the length of asection of the goods to be printed by a head, cam blocks detachablymounted upon said sections of the belt and arranged to control theprinting operation of the printing heads, said cam blocks arranged inseries and positioned in different columns, said columns extendingthroughout the length of the belt, a signal device, one column of thebelt having a cam blockk for operating said signal device after a givennumber of said sections of the goods have been printed by said printheads.

21. A block printing machine having in combination a frame,reciprocating printing heads, means for intermittently advancing acontinuous strip of goods to be printed by said heads', an endless beltcomprising sections each section being proportional in size to thelength of a section of the goods to be printed by a head, cam blocksdetachably mounted upon said sections of the belt and arranged tocontrol the printing operation of the printing heads, said cam blocksarranged in different columns extending throughout the length of thebelt, a signal device for indieating when a given length of the goodshas been printed, signal device operating cam blocks positioned in aseparate column upon the belt and arranged for operating said signaldevice, said signal device cam blocks spaced apart distancesproportional to the length of said given lengths of the goods to beprinted.

22. A printing machine having in combination a frame, means forintermittently advancing goods into the machine, printing heads, meansfor reciprocating the heads for printing rug sections upon the goods, alatch associated with each head for latching the head out of printingaction,

an endless belt, means advancing the belt :at al Vspeed proportional tothe speed of the goods,

plates positioned upon said belt and extending transversely relativelyto the length of the belt, cam blocks detachably mounted upon saidplates, said carn blocks arranged in diiferent columns relatively to thelength of the belt, bearing plates positioned adjacent to and atopposite sides of the belt, shafts having their Vopposite ends mountedin said bearing plates and extending lengthwise at right angles to thelength of the belt, an arm pivotally mounted upon each shaft and havingits free end located adjacent to the belt, spacing sleeves upon saidshafts and arranged for locating the arm in alignment with a cam block,and control devices arranged to be actuated by the tilting of the arms.

23. A printing machine having in combination a frame, printing heads,slides movable vertically upon the frame and carrying said heads, meansfor advancing goods to be printed by said heads, a latch upon the frameand movable into and out of locking engagement with a slide, a cam shaftupon the frame, a cam upon said shaft for lifting ment with said slide,a solenoid upon the bearing arm and arranged for operating said lockingmeans, a belt, means for moving the belt at a speed proportional to thegoods, plates mounted upon said belt and positioned transversely to thelength of the latter, cam blocks, means detachably mounting said blocksupon said plates, shafts located upon the frame and in spaced relationto the belt and positioned transversely to the length of the belt, armsloosely mounted upon said last mentioned shafts and arranged to betilted by i said cam blocks, a mercury switch mounted upon each of saidlast mentioned arms, and electric circuits each including a mercuryswitch and a solenoid.

24. A printing machine having in combination a frame, means forintermittently advancing goods into the machine, printing heads arrangedfor printing successive rug sections upon the goods to form completerugs, means operatively associated with the heads and Varranged forlatching the heads into and out of printing operation, an endlesscontrol belt formed of hinged belt sections proportional in size to saidrug sections, means for advancing the belt at a speed proportional tothe speed of the goods, means OSCAR BROPHY.

